Question: Given the class definition Dictops, complete the method named keyvalsearch that, given an input key, will search the object attribute edict for the associated value.

Given the class definition Dictops, complete the method named keyvalsearch that, given an input key, will search the object attribute edict for the associated value.

A KeyError exception handler should return a value of float('Nan').

Otherwise, the function should return the value associated with the input key.

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